Upgrade Netty to 4.0.6.Final

Seems the problem with large files was fixed between 4.0.4.Final and 4.0.6.Final. Working fine now.
Make the launch config available via the module registry.

This allows modules to be configured based on the launch config.
Add rendering infrastructure (#29).

It's functional, but missing docs and sufficient test coverage.
Move groovy template rendering to the new infrastructure (#29).

Very breaking change.